Coin categories

Digital asset designed to work as a medium of exchange that uses cryptography to secure financial transactions, control the creation of additional units, and verify the transfer of assets.

Payments

Payment systems, micro-transactions and transfers.

Sha256

It’s an algorithm that is used by Bitcoin, etc. (ASIC mining)

Masternode

Masternode is simply a cryptocurrency full node or computer wallet that keeps the full copy of the blockchain in real-time, with appropriate collateral amount of cryptocurrency deposited, and it’s always up & running.